December weather forecast
Loures, Portugal

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Weather in December

In December, Loures, Portugal is wrapped in the chill of winter. Yet, the city maintains its charm with Christmas decorations lit under the glimmer of sunlight. Taking over from November's cool climate, December's high temperature measures at a cool 15.5°C (59.9°F). Even in the cold, the city is a bustling scene filled with holiday markets, lights, and festive spirit. As the city prepares to bid the year farewell, it readies itself for another cycle of diverse and often unpredictable weather.

Temperature

As Loures, Portugal, steps into December, the average high-temperature is measured at a moderate 15.5°C (59.9°F), displaying minor differences from November's 17.6°C (63.7°F). Loures, in December, experiences an average temperature of 10.4°C (50.7°F) at night.

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Loures, in December, it is raining for 11.1 days, with typically 46mm (1.81") of accumulated precipitation. Throughout the year, there are 111.8 rainfall days, and 359mm (14.13") of precipitation is accumulated.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 07:36 and sunset at 17:15. On the last day of the month, sunrise is at 07:54 and sunset at 17:24 WET.

Sunshine

The average sunshine in December in Loures is 5.9h.

UV index

December is the month with the lowest UV index in Loures, Portugal, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, a daily maximum UV index of 3 leads to the following instructions:
Be vigilant - Preventing sunburn is recommended. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.

Frequently asked questions

What is the average December temperature in Loures?

In December, in Loures, the average high-temperature is 15.5°C (59.9°F), and the average low-temperature is 10.4°C (50.7°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in August is appraised at 29°C (84.2°F).

What is the average humidity in December in Loures?

In December, the average relative humidity is 76%.

How many days does it rain in December in Loures?

In December, in Loures, Portugal, the rain falls for 11.1 days. Throughout December, 46mm (1.81") of precipitation is accumulated.

What is the month with the shortest days in Loures?

With an average of 9h and 30min of daylight, December has the shortest days of the year in Loures.

What is the average length of the day in December in Loures?

The average day length in December in Loures is 9h and 30min.

What time are sunrise and sunset in December in Loures?

In December, on the first day of the month, sunrise is at 07:36 and sunset at 17:15. On the last day of the month, in Loures, sunrise is at 07:54 and sunset at 17:24 WET.

How long on average sun shines in December in Loures?

In Loures, the average sunshine duration in December is 5.9h.

What is the month with the lowest UV index in Loures?

December is the month with the lowest UV index in Loures, Portugal, with an average maximum UV index of 3.

What is the UV index intensity in December in Loures?

The average daily maximum UV index in December in Loures, Portugal, is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.

Average temperature in December
Loures, Portugal

Average temperature in December - Loures, Portugal
  • Average high temperature in December: 15.5°C

The warmest month (with the highest average high temperature) is August (27.4°C).
The month with the lowest average high temperature is January (14.8°C).

  • Average low temperature in December: 10.4°C

The month with the highest average low temperature is August (17.6°C).
The coldest month (with the lowest average low temperature) is February (9.4°C).

Average pressure in December
Loures, Portugal

Average pressure in December - Loures, Portugal
  • Average pressure in December: 1022.6mbar

The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).

Average wind speed in December
Loures, Portugal

Average wind speed in December - Loures, Portugal
  • Average wind speed in December: 14.4km/h

The windiest months (with the highest average wind speed) are February and July (15.9km/h).
The calmest months (with the lowest average wind speed) are September and October (12.9km/h).

Average humidity in December
Loures, Portugal

Average humidity in December - Loures, Portugal
  • Average humidity in December: 76%

The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (68%).

Average rainfall in December
Loures, Portugal

Average rainfall in December - Loures, Portugal
  • Average rainfall in December: 46mm

The wettest month (with the highest rainfall) is November (61mm).
The driest month (with the least rainfall) is July (3mm).

Average rainfall days in December
Loures, Portugal

Average rainfall days in December - Loures, Portugal
  • Average rainfall days in December: 11.1 days

The month with the highest number of rainy days is November (14.1 days).
The month with the least rainy days is August (2.3 days).

Average daylight in December /
Average sunshine in December
Loures, Portugal

Average daylight in December / Average sunshine in December - Loures, Portugal
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 5h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in December
Loures, Portugal

Average sunshine days in December - Loures, Portugal
  • Average sunshine days in December: 18.7 days

The month with the most sunshine days is August (26.4 days).
The months with the least sunshine days are April and November (14.5 days).

Average UV index in December
Loures, Portugal

Average UV index in December - Loures, Portugal
  • Average UV index in December: 3

The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in December
Loures, Portugal

Average cloud cover in December - Loures, Portugal
  • Average cloud cover in December: 35

The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 14).

Average visibility in December
Loures, Portugal

Average visibility in December - Loures, Portugal
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

Loures, Portugal

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